Deformation behavior of nanograined platinum films

A. L. Romasco, L. H. Friedman, L. Fang, R. A. Meirom, Trevor Edward Clark, R. G. Polcawich, J. S. Pulskamp, M. Dubey, C. L. Muhlstein

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Abstract

Anomalously low elastic moduli have been routinely reported in nanoindentation studies, but it was not clear if the behavior was real or an artifact of the measurement technique. Here, we report on similarly low elastic moduli of <111> textured, nanograined platinum films. In this work the presence of anomalous properties was verified by eliminating possible sources of experimental artifacts, namely the films' texture, piling-up of material around the indenter tip, substrate effects, microcracking, and delamination of the film from the substrate. Instead, the peculiar behavior of the nanograined, noble metal film was linked to time-dependent, elastic constitutive behavior (i.e., anelasticity).

Original languageEnglish (US)
Pages (from-to)3866-3874
Number of pages9
JournalThin Solid Films
Volume518
Issue number14
DOIs
Publication statusPublished - May 3 2010

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Romasco, A. L., Friedman, L. H., Fang, L., Meirom, R. A., Clark, T. E., Polcawich, R. G., ... Muhlstein, C. L. (2010). Deformation behavior of nanograined platinum films. Thin Solid Films, 518(14), 3866-3874. https://doi.org/10.1016/j.tsf.2010.02.007